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Multi-omics data integration using ratio-based quantitative profiling with Quartet reference materials
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DOI：10.1038/s41587-023-01934-1.png)
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Abstract
En 中文
Characterization and integration of the genome, epigenome, transcriptome, proteome and metabolome of different datasets is difficult owing to a lack of ground truth. Here we develop and characterize suites of publicly available multi-omics reference materials of matched DNA, RNA, protein and metabolites derived from immortalized cell lines from a family quartet of parents and monozygotic twin daughters. These references provide built-in truth defined by relationships among the family members and the information flow from DNA to RNA to protein. We demonstrate how using a ratio-based profiling approach that scales the absolute feature values of a study sample relative to those of a concurrently measured common reference sample produces reproducible and comparable data suitable for integration across batches, labs, platforms and omics types. Our study identifies reference-free 'absolute' feature quantification as the root cause of irreproducibility in multi-omics measurement and data integration and establishes the advantages of ratio-based multi-omics profiling with common reference materials. Multi-omics data are readily integrated using quartet reference materials.
Keywords:
REPRODUCIBILITY
QUALITY
MAQC
HEALTH
NORMALIZATION
CHALLENGES
PREDICTION
DISCOVERY
RESOURCE
PACKAGE
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41.7
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